Criminal Reasearch Unit-3 – Article Example
Criminal Research Unit 3 CRIMINAL RESEARCH UNIT 3 Variables in the Research The variables in the research will be of two types the independent and the dependent variables. Other variables are sex, age, marital status, job occupation, residence, race, nationality, income, employment rate, and police response.
Determining the validity and reliability
The first step in determining the validity and reliability will be by ensuring that all the procedures employed during the whole process of research are scientific. Scientific procedure will ensure that the results from the research will be repeatable if performed by a different group of researchers. The second step of determining the validity and reliability will be through performing a pretesting procedure on the data-collecting tool before the actual data collection procedure commences. Validity will be measured by randomizing the population, which will be used as the source of data for the whole research process. A precise measurement will be through breaking validity into two that is internal and external validity. Internal validity will be measured by critically examining how the study design has been structured in terms of the expected scientific research method. External validity will be measured by scrutinizing the results and causal relationships in the study (Kaplan, 2004).
Choosing the sample
The population that I will employ in this study will incorporate victims of kidnappings. The kidnappings will include those in which the kidnappers have asked for ransom payments. Probability sampling will be the best approach that I will use to sample from the target population, and in this category, simple random testing will be ideal. Simple random sampling will provide an equal opportunity for any character in the sampling frame to be included in the study. The mere idea of employing a probability sampling will ensure randomness (Kaplan, 2004).
Kaplan D. (2004). The Sage handbook of quantitative methodology for the social sciences. New York: Sage Publications, inc.